Ignore missed_in_asic_db_routes error in vxlan/test_vxlan_crm.py …

…test for KVM (sonic-net#14365)

What is the motivation for this PR?
When running vxlan/test_vxlan_crm.py, there is a chance to get missed_in_asic_db_routes error in log analyzer for KVM

How did you do it?
Since missed_in_asic_db_routes has been ignored in other test scripts in vxlan module, ignore in vxlan/test_vxlan_crm.py test for KVM
Remove conditional mark xfail but keep mgmt issue sonic-net#14311 open

How did you verify/test it?
Test in KVM

tests/common/plugins/conditional_mark/tests_mark_conditions.yaml

@@ -1890,50 +1890,30 @@ vxlan/test_vxlan_crm.py::Test_VxLAN_Crm::test_crm_128_group_members[v6_in_v6]:
     reason: "On Mellanox spc1 platform, due to HW limitation, vxlan ipv6 tunnel is not supported"
     conditions:
       - "asic_gen == 'spc1'"
-  xfail:
-    reason: "Vnet route missed in ASIC DB for KVM platform, xfail for unblocking PR test"
-    conditions:
-      - "(asic_type in ['vs']) and https://github.com/sonic-net/sonic-mgmt/issues/14311"
 
 vxlan/test_vxlan_crm.py::Test_VxLAN_Crm::test_crm_16k_routes[v4_in_v6]:
   skip:
     reason: "On Mellanox spc1 platform, due to HW limitation, vxlan ipv6 tunnel is not supported"
     conditions:
       - "asic_gen == 'spc1'"
-  xfail:
-    reason: "Vnet route missed in ASIC DB for KVM platform, xfail for unblocking PR test"
-    conditions:
-      - "(asic_type in ['vs']) and https://github.com/sonic-net/sonic-mgmt/issues/14311"
 
 vxlan/test_vxlan_crm.py::Test_VxLAN_Crm::test_crm_16k_routes[v6_in_v6]:
   skip:
     reason: "On Mellanox spc1 platform, due to HW limitation, vxlan ipv6 tunnel is not supported"
     conditions:
       - "asic_gen == 'spc1'"
-  xfail:
-    reason: "Vnet route missed in ASIC DB for KVM platform, xfail for unblocking PR test"
-    conditions:
-      - "(asic_type in ['vs']) and https://github.com/sonic-net/sonic-mgmt/issues/14311"
 
 vxlan/test_vxlan_crm.py::Test_VxLAN_Crm::test_crm_512_nexthop_groups[v4_in_v6]:
   skip:
     reason: "On Mellanox spc1 platform, due to HW limitation, vxlan ipv6 tunnel is not supported"
     conditions:
       - "asic_gen == 'spc1'"
-  xfail:
-    reason: "Vnet route missed in ASIC DB for KVM platform, xfail for unblocking PR test"
-    conditions:
-      - "(asic_type in ['vs']) and https://github.com/sonic-net/sonic-mgmt/issues/14311"
 
 vxlan/test_vxlan_crm.py::Test_VxLAN_Crm::test_crm_512_nexthop_groups[v6_in_v6]:
   skip:
     reason: "On Mellanox spc1 platform, due to HW limitation, vxlan ipv6 tunnel is not supported"
     conditions:
       - "asic_gen == 'spc1'"
-  xfail:
-    reason: "Vnet route missed in ASIC DB for KVM platform, xfail for unblocking PR test"
-    conditions:
-      - "(asic_type in ['vs']) and https://github.com/sonic-net/sonic-mgmt/issues/14311"
 
 vxlan/test_vxlan_ecmp.py:
   skip:

tests/vxlan/test_vxlan_crm.py

@@ -21,6 +21,20 @@
 ecmp_utils = Ecmp_Utils()
 
 
+@pytest.fixture(autouse=True)
+def _ignore_route_sync_errlogs(duthosts, rand_one_dut_hostname, loganalyzer):
+    """Ignore expected failures logs during test execution."""
+    if loganalyzer:
+        # Ignore in KVM test
+        KVMIgnoreRegex = [
+            ".*missed_in_asic_db_routes.*",
+        ]
+        duthost = duthosts[rand_one_dut_hostname]
+        if duthost.facts["asic_type"] == "vs":
+            loganalyzer[rand_one_dut_hostname].ignore_regex.extend(KVMIgnoreRegex)
+    return
+
+
 def uniq(lst):
     last = object()
     for item in sorted(lst):